服务器环境
容器 操作系统 IP地址 主要软件
nginx CentOS 7 172.20.0.10 Docker-Nginx
mysql CentOS 7 172.20.0.20 Docker-Mysql
php CentOS 7 172.20.0.30 Docker-php
任务需求
使用 Docker 构建 LNMP 环境并运行 Wordpress 网站平台
限制 Nginx 容器最多使用 500MB 的内存和 1G 的 Swap
限制 Mysql 容器写 /dev/sda 的速率为 10 MB/s
将所有容器进行快照，然后将 Docker 镜像打包成 tar 包备份到本地
服务搭建
Nginx
- 建立工作目录
root@docker \~# mkdir /opt/nginx
root@docker \~# cd /opt/nginx
root@docker nginx# rz -E
rz waiting to receive.
#上传 nginx 安装包 nginx-1.12.0.tar.gz
root@docker nginx# rz -E
rz waiting to receive.
#上传 wordpress 服务包 wordpress-4.9.4-zh_CN.tar.gz
- 编写 Dockerfile 脚本
root@docker nginx# vim Dockerfile
FROM centos:7
MAINTAINER this is nginx image <xtc>
RUN yum -y install pcre-devel zlib-devel gcc gcc-c++ make;useradd -M -s /sbin/nologin nginx
ADD nginx-1.12.0.tar.gz /usr/local/src/
WORKDIR /usr/local/src/nginx-1.12.0
RUN ./configure \
--prefix=/usr/local/nginx \
--user=nginx \
--group=nginx \
--with-http_stub_status_module;make -j 4 && make install
ENV PATH /usr/local/nginx/sbin:$PATH
ADD nginx.conf /usr/local/nginx/conf/
ADD wordpress-4.9.4-zh_CN.tar.gz /usr/local/nginx/html
RUN chmod 777 -R /usr/local/nginx/html/
EXPOSE 80
VOLUME "/usr/local/nginx/html/"
CMD "/usr/local/nginx/sbin/nginx","-g","daemon off;"
- 准备 nginx.conf 配置文件
root@docker nginx# ls
Dockerfile nginx-1.12.0.tar.gz nginx.conf wordpress-4.9.4-zh_CN.tar.gz
root@docker nginx# egrep -v "^(.)*#(.)*" nginx.conf \| grep -v "\^"
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
server {
listen 80;
server_name localhost;
charset utf-8;
location / {
root html;
index index.html index.php;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
location ~ \.php$ {
root html;
fastcgi_pass 172.20.0.30:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME /usr/local/nginx/html$fastcgi_script_name;
include fastcgi_params;
}
}
}
- 生成镜像
root@docker nginx# docker build -t nginx:lnmp .
root@docker nginx# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx lnmp 35a6404fcfa1 5 seconds ago 522MB
centos 7 eeb6ee3f44bd 4 weeks ago 204MB
- 创建自定义网络
root@docker nginx# docker network create --subnet=172.20.0.0/16 --opt "com.docker.network.bridge.name"="docker1" mynetwork
cdc7b80633abf6c1f573528234f024f6088340475acae277d9710f0d2d5dc400
root@docker nginx# docker network ls
root@benet23 nginx# ifconfig docker1
docker1: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
- 启动镜像容器
root@benet23 nginx# docker run -d --name nginx -p 80:80 -m 500m --memory-swap 1g --net mynetwork --ip 172.20.0.10 nginx:lnmp
24cbedd7982b1cf658cff4efd1ea75a5bfe252b6d01b2a222ed4cde63215479d
root@benet23 nginx# docker ps
root@benet23 nginx# docker inspect nginx
7.测试
Mysql
- 建立工作目录
root@benet23 nginx# mkdir /opt/mysql
root@benet23 nginx# cd /opt/mysql/
root@benet23 mysql# rz -E
rz waiting to receive.
#传入mysql安装包mysql-boost-5.7.20.tar.gz
- 编写 Dockerfile
root@docker mysql# vim Dockerfile
FROM centos:7
MAINTAINER this is mysql image <lnmp>
RUN yum -y install ncurses ncurses-devel bison cmake pcre-devel zlib-devel gcc gcc-c++ make;useradd -M -s /sbin/nologin mysql
ADD mysql-boost-5.7.20.tar.gz /usr/local/src/
WORKDIR /usr/local/src/mysql-5.7.20/
RUN cmake \
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_UNIX_ADDR=/usr/local/mysql/mysql.sock \
-DSYSCONFDIR=/etc \
-DSYSTEMD_PID_DIR=/usr/local/mysql \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DWITH_EXTRA_CHARSETS=all \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_ARCHIVE_STORAGE_ENGINE=1 \
-DWITH_BLACKHOLE_STORAGE_ENGINE=1 \
-DWITH_PERFSCHEMA_STORAGE_ENGINE=1 \
-DMYSQL_DATADIR=/usr/local/mysql/data \
-DWITH_BOOST=boost \
-DWITH_SYSTEMD=1;make -j4;make install
ADD my.cnf /etc/my.cnf
EXPOSE 3306
RUN chown -R mysql:mysql /usr/local/mysql/;chown mysql:mysql /etc/my.cnf
WORKDIR /usr/local/mysql/bin/
RUN ./mysqld \
--initialize-insecure \
--user=mysql \
--basedir=/usr/local/mysql \
--datadir=/usr/local/mysql/data;cp /usr/local/mysql/usr/lib/systemd/system/mysqld.service /usr/lib/systemd/system/;systemctl enable mysqld
ENV PATH=/usr/local/mysql/bin:/usr/local/mysql/lib:$PATH
VOLUME "/usr/local/mysql"
CMD "/usr/sbin/init"
- 准备 my.cnf 文件
root@docker mysql# vim my.cnf
client
port = 3306
socket=/usr/local/mysql/mysql.sock
mysqld
user = mysql
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
port = 3306
character-set-server=utf8
pid-file = /usr/local/mysql/mysqld.pid
socket=/usr/local/mysql/mysql.sock
bind-address = 0.0.0.0
skip-name-resolve
max_connections=2048
default-storage-engine=INNODB
max_allowed_packet=16M
server-id = 1
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_AUTO_VALUE_ON_ZERO,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,PIPES_AS_CONCAT,ANSI_QUOTES
- 生成镜像
root@docker mysql# docker build -t mysql:lnmp .
root@docker mysql# docker images
- 启动镜像容器
root@benet23 mysql# docker run --name=mysql -d --privileged --device-write-bps /dev/sda:10M -v /sys/fs/cgroup:/sys/fs/cgroup --net mynetwork --ip 172.20.0.20 mysql:lnmp
root@benet23 mysql# docker ps -a
- 验证 mysql
root@benet23 mysql# docker exec -it mysql bash
root@e75631cda20b bin# systemctl status mysqld
Php
- 建立工作目录
root@benet23 mysql# mkdir ../php
root@benet23 mysql# cd ../php/
root@benet23 php# rz -E
rz waiting to receive.
#传入php安装包php-7.1.10.tar.bz2
- 编写 Dockerfile 脚本
root@benet23 php# vim Dockerfile
FROM centos:7
MAINTAINER this is php image <xtc>
RUN yum install -y gd \
libjpeg libjpeg-devel \
libpng libpng-devel \
freetype freetype-devel \
libxml2 libxml2-devel \
zlib zlib-devel \
curl curl-devel \
openssl openssl-devel \
gcc gcc-c++ make pcre-devel;useradd -M -s /sbin/nologin nginx
ADD php-7.1.10.tar.bz2 /usr/local/src/
WORKDIR /usr/local/src/php-7.1.10
RUN ./configure \
--prefix=/usr/local/php \
--with-mysql-sock=/usr/local/mysql/mysql.sock \
--with-mysqli \
--with-zlib \
--with-curl \
--with-gd \
--with-jpeg-dir \
--with-png-dir \
--with-freetype-dir \
--with-openssl \
--enable-fpm \
--enable-mbstring \
--enable-xml \
--enable-session \
--enable-ftp \
--enable-pdo \
--enable-tokenizer \
--enable-zip ; make -j 4 ; make install
ENV PATH /usr/local/php/bin:/usr/local/php/sbin:$PATH
ADD php.ini /usr/local/php/lib/
ADD php-fpm.conf /usr/local/php/etc/
ADD www.conf /usr/local/php/etc/php-fpm.d/
EXPOSE 9000
CMD /usr/local/php/sbin/php-fpm -F
- 准备 php.ini、php-fpm.conf、www.conf 配置文件
3.1 php.ini
该配置文件模板位于安装目录的 php-7.1.10/php.ini-development 位置
root@benet23 php# vim php.ini
#939行,取消注释，修改
date.timezone = Asia/Shanghai
#1170行,修改
mysqli.default_socket = /usr/local/mysql/mysql.sock
root@benet23 php\]# egrep -v "\^;" php.ini \| egrep -v "\^$"\[PHP
engine = On
short_open_tag = Off
precision = 14
output_buffering = 4096
zlib.output_compression = Off
implicit_flush = Off
unserialize_callback_func =
serialize_precision = -1
disable_functions =
disable_classes =
zend.enable_gc = On
expose_php = On
max_execution_time = 30
max_input_time = 60
memory_limit = 128M
error_reporting = E_ALL
display_errors = On
display_startup_errors = On
log_errors = On
log_errors_max_len = 1024
ignore_repeated_errors = Off
ignore_repeated_source = Off
report_memleaks = On
track_errors = On
html_errors = On
variables_order = "GPCS"
request_order = "GP"
register_argc_argv = Off
auto_globals_jit = On
post_max_size = 8M
auto_prepend_file =
auto_append_file =
default_mimetype = "text/html"
default_charset = "UTF-8"
doc_root =
user_dir =
enable_dl = Off
file_uploads = On
upload_max_filesize = 2M
max_file_uploads = 20
allow_url_fopen = On
allow_url_include = Off
default_socket_timeout = 60
CLI Server
cli_server.color = On
Date
date.timezone = Asia/Shanghai
filter
iconv
intl
sqlite3
Pcre
Pdo
Pdo_mysql
pdo_mysql.cache_size = 2000
pdo_mysql.default_socket=
Phar
mail function
SMTP = localhost
smtp_port = 25
mail.add_x_header = On
SQL
sql.safe_mode = Off
ODBC
odbc.allow_persistent = On
odbc.check_persistent = On
odbc.max_persistent = -1
odbc.max_links = -1
odbc.defaultlrl = 4096
odbc.defaultbinmode = 1
Interbase
ibase.allow_persistent = 1
ibase.max_persistent = -1
ibase.max_links = -1
ibase.timestampformat = "%Y-%m-%d %H:%M:%S"
ibase.dateformat = "%Y-%m-%d"
ibase.timeformat = "%H:%M:%S"
MySQLi
mysqli.max_persistent = -1
mysqli.allow_persistent = On
mysqli.max_links = -1
mysqli.cache_size = 2000
mysqli.default_port = 3306
mysqli.default_socket = /usr/local/mysql/mysql.sock
mysqli.default_host =
mysqli.default_user =
mysqli.default_pw =
mysqli.reconnect = Off
mysqlnd
mysqlnd.collect_statistics = On
mysqlnd.collect_memory_statistics = On
OCI8
PostgreSQL
pgsql.allow_persistent = On
pgsql.auto_reset_persistent = Off
pgsql.max_persistent = -1
pgsql.max_links = -1
pgsql.ignore_notice = 0
pgsql.log_notice = 0
bcmath
bcmath.scale = 0
browscap
Session
session.save_handler = files
session.use_strict_mode = 0
session.use_cookies = 1
session.use_only_cookies = 1
session.name = PHPSESSID
session.auto_start = 0
session.cookie_lifetime = 0
session.cookie_path = /
session.cookie_domain =
session.cookie_httponly =
session.serialize_handler = php
session.gc_probability = 1
session.gc_divisor = 1000
session.gc_maxlifetime = 1440
session.referer_check =
session.cache_limiter = nocache
session.cache_expire = 180
session.use_trans_sid = 0
session.sid_length = 26
session.trans_sid_tags = "a=href,area=href,frame=src,form="
session.sid_bits_per_character = 5
Assertion
zend.assertions = 1
COM
mbstring
gd
exif
Tidy
tidy.clean_output = Off
soap
soap.wsdl_cache_enabled=1
soap.wsdl_cache_dir="/tmp"
soap.wsdl_cache_ttl=86400
soap.wsdl_cache_limit = 5
sysvshm
ldap
ldap.max_links = -1
mcrypt
dba
opcache
curl
openssl
3.2 php-fpm.conf
该配置文件位于 /usr/local/php/etc/php-fpm.conf.default
root@docker php# vim php-fpm.conf
#17行，删除注释符号";"
pid = run/php-fpm.pid
root@docker php# egrep -v "^;" php-fpm.conf | egrep -v "^$"
global
pid = run/php-fpm.pid
include=/usr/local/php/etc/php-fpm.d/*.conf
3.3 www.conf
该配置文件位于 usr/local/php/etc/php-fpm.d/www.conf.default
root@docker php# vim www.conf
#23、24行，修改用户和组
user = nginx
group = nginx
#36行，修改监听IP和端口为容器IP:9000端口
listen = 172.20.0.30:9000
root@docker php# egrep -v "^;" www.conf | egrep -v "^$"
www
user = nginx
group = nginx
listen = 172.20.0.30:9000
pm = dynamic
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 3
- 生成镜像
root@benet23 php# docker build -t php:lnmp .
root@benet23 php# docker images
- 启动镜像容器
root@benet23 php# docker run -itd --name php --net mynetwork --ip 172.20.0.30 -p 9000:9000 --volumes-from nginx --volumes-from mysql php:lnmp
38c3d71f3e4afcf060cb471ecd9c409d7f236b651bec752139cd5fd32916ee77
root@benet23 php# docker ps
- 验证 php
root@benet23 php# docker exec -it php bash
root@03e251af5164 php-7.1.10# ps -aux
启动 wordpress 服务
- mysql 授权
进入 mysql 容器
root@e75631cda20b bin# mysql -u root -p
Enter password:
#初始密码为空
mysql> create database wordpress;
Query OK, 1 row affected (0.00 sec)
mysql> grant all privileges on wordpress.* to 'wordpress'@'%' identified by '123456';
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> grant all privileges on *.* to 'root'@'%' identified by '123456';
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
- 浏览器访问测试
访问 http://192.168.90.10/wordpress/index.php
